Concrete-wall mold.



C. O. ELLERT.

CONCRETE WALL MOLD.

APPLICATION FILED JvULYl. 19H. RENEWED DEC. 17.19l5.

l 9 l QUQ. Patented July 1l, 1916.

ATTORNEYS By M,

C4 0. ELLERT.

CONCRETE WALL MOLD.

APPLICATION FILED JULY I. I9II- IIENEWED DEC-A II, 1915.

Patented July 1'1, 1916.

2 SHEETS-SHEET 2 ATTORNEYS 4 o i /fu w//// v mf S 9 /f///////////////Hrr 0 f w WM L I 9 L W WEAR@ FAENT F@E.

CHARLES O. ELLERT, 0F NEW YORK, 1\T. Y.

CONCRETE-VITALI. lvIOLD.

LIMWZI.

Application filed July 1, 1911, Serial No. 636,363.

To all whom t may concern Be it known that I, Cnannns 0. ELLnnT, acitizen of the United States, and a resident of the city of New York,borough of Brooklyn, in the county of Kings and State of New York, haveinvented a. new and Improved Concrete-Wall Mold, of which the followingis a full, clear, and exact description.

My invention relates to molds for plastics and comprehends aconstruction especially adapted for use with concrete.

The object of my invention is to provide a new and improved constructionof the class described in which the form boards may be quickly andeasily withdrawn from the concrete which has set thereby providing forfurther use of these boards in otherplaces.

A further object of the invention is to provide a construction involvingthe use of standards, fillers, and mold boards, together with suitablefastening means, characterized by the fact that any particular moldboard may be returned to the exact position which it occupied relativelyto the standards after the mold has been dismantled; such returning ofthe mold board to such original position is frequently necessary becausethe hardened wall may be more or less damaged through withdrawal of themold boards therefrom. In such case the ease and accuracy of replacementof the mold board is valuable in that in repairing the wall theidentical mold board may be returned to identical former position.

A further object of my invention is the provision of a new and usefulcombination of elements which form a mold for concrete, the elementsbeing of a standard construction, whereby a mold of knock-down characteris provided which is adapted for use repeatedly; suchl a mold is adaptedto perform efficient service and the cost of concrete construction isreduced because the parts being capable of repeated use and beingsimilar in conformation a lo-w first cost is made possible.

The usual method of building concrete walls is about as follows: A moldof the desired cross-sectional form is made up of boards and standards,these parts being secured together. The concrete is poured therein andwhen hard the mold is knocked to pieces; the greater part of thematerial used in making the mold is generally unfit for further similaruse as the mold is pulled Specification of Letters Patent.

Patented July 11, M1916.

Renewed December 17, 1915. Serial No. 67,487.

down indiscriminately. In my construction, however, I propose to providea mold which is made up of units, each unit performing a distinctfunction and each being of the same dimensions as other similar units;by such formation ofthe parts a wall may be started and when portionsbecome set, the moldmay be removed and built on to other portions of themold thereby providing for continuous construction. It is to be notedthat the use of such a mold will decrease the cost of building concretestructures since the same mold parts may be used over again, and onlyenough parts need be obtained to provide for a certain amount of work,since as the pouring continues, portions of the mold will be dismantledand put to use in another place.

Particularly, the invention comprises a mold made up of standards, formboards, and shims, together with various securing devices for keepingthe parts in position for use. Another element which I have termed aspreader is also made use o fl in order to properly space the standards,this spreader being carried by the standards and being adapted tosupport and properly space the reinforcing rods within the mold.

Referenceis to be had to the accompanying drawings, lconstituting a partof this specification, in which similar characters of reference denotecorresponding parts in all the views and in which Figure 1 is a sideview of a mold in accordance with my invention; Fig. 2 is a verticalsectional view thereof on the line 2 2 of Fig. l; Fig. 3 is a horizontalsectional view on the line 3-3 of Fig. l; Fig. 4 is an enlarged'verticalsectional view along the line H of Fig. 1. l .Y Y

The vertical standards 1 which may be of any suitable size and lengthare eachprovided with a series of vertically alined openings 2, 3,- 4;any desired number of similarly constructed form boards y5 arepositioned adjacent one side of each standard l, the fillers or shims 6being placed between each standard and the form boards, the parts beingremovably held together by means to be presently described. The width ofthe form boards may be as desired and the thickness thereof will bedetermined by the character of the work; there is a distinct relation,however, between the thickness of the fillers and the thickness of theform boards,` which is, that the llers are at 'Cil least as thick, andpreferably thicker, than l haps three form boards.

. The means for securing the form'boards andiillers to the standardsubstantially as follows: Each form board adjacent each end, and thedistances therefrom in all. the boards being substantially equal, isprovided with arrecess 7, and within each recess is a transverselyextending pin 8 secured in any Y suitable manner, one form being shownas y screws 9, in Fig. 8. A securing device comprisingiabolt l0,.hav ingaV threaded end 11 for engagementwith a handlednut 12, is

made use of,ithe bolt 10 having a hooked end 13 for engagement with thepin. 8 withinV the recess 7.V Each securing device is adapted to beinserted within any one of V11 of each bolt projects beyond the standard1 thereby providing for manipulation of the handled nut 12 in order tosecurely hold the form board positioned on the standard with v the shimor Vfiller between-them; the openings'2, 4 in the standard are ofgreater length `than width in'order to permit easy withdrawal andadiustment of the bolt 10, there being a-strap 15 positioned on eachbolt and adapted to extend across the opening 2, 4 in order to provide aseat for the handled nut 12 when tightened.

As shown particularly in Fig. 3, each filler or shim 6 isy also providedwith openings 16, 17 of'substantially the same size and spaced apart adistance equal to that between the openings 2,4 in the standard; it willthus be noted that when the parts are in normal position the openings,4, 16, and the recess 7 in vthe end of the forni board are in registerthereby making operation of the fastening device 10, 12 easy.

Each filler V6 adjacenteach end, is provided with a suitable re`cess'19having a pin 2Ol extending thereacross, -theY purpose of 'which'is tovprovideY a means for engagement with a suitable tool in order towithdrawrthe filler; for the same reason, each form board 5 atanintermediate portion, is provided with a recess 21 having a Apin 22 eX-tending thereacross. VIt may be noted'here that none V,of the recesses 7at either end of a form board, northe intermediate recess 21,

`extend entirely therethrough. Such a feature Vprovides a smooth andunbroken surboards.

Y face to theoppositeside of each one of these f Thev description thusfar has had to do withone side only ofthe mold; Fig. 2 illustrates therelation of the parts. when the mold is complete and ready foi' use; ofcourse, it is to be understood that the length of a complete mold may beas desired. greater length being obtained by merely setting up aplurality of standards spaced from each other and securing the formboards and lillers thereto; the idea involved comprehends this feature,that the adjacent ends of form boards 5 lying in the same plane are at asubstantially centra-l line of the standard 1, as shown particularly inFig. 3. The sides of the mold are spaced apart the required distance byany suitable means, the following being vthe preferred form; the lowerspacing means is a tie rod 30 having threadv41 may pass; these means maybe in the same line or may be staggered thus holding the rods in uprightposition. The part 40 is secured in position by means of channels 42secured thereto, each channel having ends 43 adapted'v to abut the innersides of the standards 1 and be held in such position by means offastening devices 12 extending through any one of the middle line ofopenings 3; the handled nut of each fastening device is similar to thosepreviously described. l

The use and operation of my device may be described in connection withFig. 2; the standards l are set in upright position, being secured insuch position by suitable braces -if so desired; the tie rods 30engaging opposite standards holds them properly spaced at the bottoniwhile the spreader 40 -stiffens and spaces the top, the spreader alsosupporting the reinforcing rods 41. The fillers and forni boards arethen secured to the standards, the meeting ends of adjucent boardscoming closely together in order to provide for al smooth finish to theliardeiied concrete. rl`he plastic is then poured Vinto the mold to asuitable height, the tie rods 30 being left in position therein to holdthe standards in position, the withdrawal of the rods being effectedeasily at a later time. As the pouring continues and the top of thestandards is reached, the

`spreader 40 is removed and another standing ends, and after morefillers and form boards are secured in position the pouring maycontinue; when the concrete first poured has become set the form boardsmay be withdrawn for use in another place in the following manner. Byloosening the handled nuts 12 and removing the bolts 10, the Iillers andform boards are in position for removal, but will not fall out of place,because of the pressure of the hardened concrete. The fillers arewithdrawn by inserting a suitable tool into engagement with the pin 2Ocarried thereby; when the fillers are removed there `is an open spacebetween the inner side of the standards and the outside of the formboards equal to the thickness of the fillers, which it is to be noted,as has been previously set out, is equal to the thickness of each formboard. Each form board may be pulled away from the hardened concrete byengaging the pin 22 thereon with a suitable tool, the form board thenmoving out adjacent the standards and into the space formerly occupiedVby the fillers; the form boards may now be removed, and, it is to benoted without disturbing the standards, by moving it bodily in alongitudinal direction under the standards until one end of the boardclears one standard, when moving the board in an opposite longitudinaldirection will carry the other end thereof away from the other standard.The form board may now be carried to any other point of the work andagain placed in position for forming mold. 1When the form boards havebeen removed the hardened concrete wall is exposed, the building of themold, however, continuing and being not dependent on the mold structurewhere the concrete has set.

lllhen the form boards have been thus removed the standards are still inposition; they may be left in' such position, if so desired, in order toform supporting means for the standards above; such practice is notnecessary, however, as each standard with its fillers and form boardsmay stand by itself as shown particularly in Fig. 2, where A representsthe top of a hardened mass, or al foundation, or equivalentoonstruction.

If the standards have been left in position, any particular mold boardmay be returned to the identical position which it occupies relativelyto the wall and the standard during the formation of the wall; it may bethat in removing the mold boards, the outside of the wall may have beendamaged, in which event it becomes necessary to return the mold board toposition, and the ease with which the same mold board may be .returnedto the same position is apparent from the adjustability of the fasteningdevices which hold the form boards to the standards.

lt is readily seen that in molds as heretofore constructed, using blocksor fillers superimposed between the standard and mold boards, each ofthe blocks supports the weight of the blocks above it, and removal ofany one of the blocks is attended with considerable diiiiculty anddisplacement to the blocks above same.

lt must be understood that my improved spacing block is so constructedas to periit its attachment and registering with any of the openingsprovided for this purpose in the standard, totally independent of anyother block, and as a plurality of fastening devices pass through eachindividual spacing blocl: it is readily seen that it is immovable whenthe standard, registering spacing block and mold board are firmly unitedas individual units by the fastening devices. This enables a collapsiblemold to be constructed of members each mutually strengthening the other,with the result of constructing a mold having a more accurateinterchange of parts than heretofore attained.

The particular form of fillers illustrated is capable of wide variation;the idea embodied in their use is to provide a means between eachstandard and the form boards which is removable in order to permit easyand quick removal of the boards. Each filler maybe provided with aplurality of threaded lugs extending from one side and entering suitableopenings in the standard, each lug being provided with nuts orequivalent devices in order to permit the filler to be adjust-ed at anydesired distance from the standard, the filler being movable toward thestandard and out of engagement with the form board in order to providethe open space hercinbefore mentioned for removal of the board. Such astructure is adapted to perform the functions of the particular formwhich l have illustrated.

Uf course it is to be understood that while l have defined certain ofthe parts in this specification by certain terms that such terms aredescriptive only, any other means performing the same function beingwithin the spirit of the invention; the fillers or shims may bevariedvvidely in their' construction in adapting them to dierent molds,the spirit of the invention, however, residing in an element fulfillingthe purpose even although not properly called such.

From the above description taken in connection with the accompanyingdrawings, it is apparent that I have disclosed a structure fulfillingthe objects of the invention as set forth in the beginning of thisspecification. The particular size, shape and relative positioning ofthe parts is capable of modification, the resulting structure however,being comprehended Within the spirit and scope of the appended claims.

Having thus described my invention, I claimV as new and desire to secureby Letters Patent: Y

. V1. A concrete Wall mold comprising uprights provided withperforations; mold sections; integral holding means positioned inproximity to the abutting ends of the mold sections, removable fasteningmeans adapted Yto engage said uprights andY said integral holding means;and perforated spacing members positioned .intermediate said uprightsandVsaid mold sections in a manner topermit the perforations in saidspacing members to register with the perforations inV said uprights andwith said integral holding means to permit the positioningrof saidfastening ineans,rsaid fastening means Vpassing through openings in thespacing members. Y

Q. A. concrete Wall mold comprising up- Y rights'pro'vided vwith alinedperforations;

moldsections provided With integral hold-V Ving means in proximity totheir abutting Copies of this patent may be obtained for 3. Incombination a concrete wall mold comprising spaced uprights providedwith openings; mold sections provided with integral holding means inproximity to their 35 abutting ends; spacing members provided f withmeans to register with said openings in said uprights; and meansengaging said iiitegral holding means and said uprights to secure theelements, said fastening means 4o passing through the opening in thespacing members.

4. In combination, a concrete Wall mold comprising spaced uprightshaving their body portions intermediate their edges pro- 45 vided withperforations; mold sections having one of their faces provided withintegral holding means; spacing members provided ivith perforations toregister with said perforations in said uprights; and i'e- 50 movablefastening means passing through said perforations iii said uprights andsaid spacing members and engaging said integral holding means in saidmold sections.

In testimony whereof I have signed my 55 naine to this specification inthe presence of tivo subscribing Witnesses.

CHARLES O. ELLERT.

Witnesses:

PHILIP D. RoLLHAUs, LAURENCE J. GALLAGHER.

five cents each, by addressing the Commissioner of Patents, Washington,D. C.

